Machine for casting printers&#39; leads.



No. s5|,9s|. Patented lune-l'9, I900.

12. P. BABBOGK. MACHINE FOB CASTING PRINTERS LEADS.

(Application filed Jim's 6, 1899.)

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(No Model.)

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No. 65!,96l. Patented lune l9, woo.

C. P. BABCGCK.

MAQHINEFUR CASTING PRINTERS LEADS (Application filed June 6, 1898.)

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1 UNITED STATES PATENT, OFFICE.

. CHARLES P. BABCOOK, OF MINNEAPOLIS, MINNESOTA.

MACHINE FOR CASTING PRINTERS LEADS.

SPECIFICATION forming part of Letters Patent No. 651,961, dated June 19, 1900.

Application filed June 6, 1899. Serial No. 719,528. (No model.)

. a citizen of the United States of America, and

a resident of Minneapolis, Minnesota, have invented certain new and useful Improvements in Machines for Casting Printers Leads, of

which the following is a specification.

My invention relates to improvements in machines for casting printers leads.

The object of my invention is to provide means whereby a continuous strip or ribbon.

The machine consists, primarily, of endlessbelts moving through the molten metal, their adjacent faces being formed with longitudinal grooves converging to mold the metal and discharge the solidified product from the machine.

In the following description it will be seen that in the construction shown both of the belts are provided with longitudinal grooves; but it is obvious-to those skilled in the art that an operative device may be constructed either with one or both of the belts grooved for forming the matrix, as shown in Figures 5 and 3, without departing from the principles which I have applied.

In the accompanying drawings, forming part of thisspecification, Fig. 1 is a central longitudinal cross-section of the lead-casting machine. 2 is an end view of the machine. Fig. 3 is a crosssection of the stuffing-box through which the belts pass, taken on the line'X X of Fig. 1.

pulleys; and Fig. 5 is a cross-sectional view of the stuffing-box, taken on the line X X of Fig. 1, showing a modified construction of belts, in which one of the belts has a plain surface and the other belt a grooved surface for forming the mold.

In the drawings let A represent my improved machine for casting printers -leads, B the crucible, and O the furnace. To cast the metal contained in the crucible, Iprovide endless steel belts or bands 2 and 3, which pass, respectively, over and under the furnace, through the crucible, and around the pulleys 4 and 5 and 6 and 7, which are mounted upon the shafts 8 and 9 and 10 and 11. These shafts are journaled upon the stand- 19 and 20 and the water-jacket 21.

25 to prevent the crucible leaking.

H Figetisa' detail view of the belts and their respective ards 12 and 13 of the frame D. The standards 13 are formed with the slots 14, in which are mounted the expansion-springs 15 and the journal sliding blocks 16. The springs are adapted to distend the belts 2 and 3. The belts converge into the crucible and operate at a similar speed in the direction of 1 the arrow. The pulleys are propelled by the ,driver 17, mounted on the shaft 9, and the train of gearing 18, connecting the shaft 8.

The crucible is provided with stufiing-boxes The belts slide through the box 19 in spread position, thereby forming the ingate or opening 22, and converge toward the opening 23 in the box 20, where the adjacent faces 24 of the belts are in contact until they reach the pulleys 4 and 5. The boxes are provided with packing The adjacent faces of the belts are provided with corresponding grooves 26 and 27, which when in juxtaposition form the mold 28, in which the metal is cast. The metal enters the mold throughthe ingate 22. The belts after traveling through the box 19 and crucible pass through the water-jacket 21, which is formed as an integral part of the frame 29 of the crucible and provided with the chamber 30,

which surrounds the belts. Cold water is circulated'through the chamber by means of the'intake and outtake pipes 31 and 32, whereby the molt-en metal contained in the mold is cooled and solidified when the machine is in operation.

In operation crude metal is placed in the crucible and reduced to amolten state by ,means of the furnace Q. The belts are 0perated at a constant speed in the direction as indicated by the arrow. The molten metal enters the mold 28 through the ingate 22, is carried by the belts through the water-jacket, where it solidifies, and the product 34. is ejected from the machine.

.It is obvious that the crucible must be kept filled with the molten metal at a suitable height, (indicated by the line 33,) the belts op 1. A machine forcasting metal strips, con-" sisting of a crucible, means for heating the same, a sectional mold, composed of a pair of metallic belts, having a 'contin'uous mold- 2. -A lead-casting machine, consistingof a crucible, meansfor heating the same,'a water-m jacketadjoining saidcrucible, a mold formed"- by grooved belts in juxtaposition, and means by which saidbelts are automatically passed through said crucible and water-jacket, sepa ratedwhile-within said crucible and brought together before leavingthe" same, substantially as described.

A machinefor casting metal into strips,

consisting vof a crucible, means for heating the same, a water-jacket, positioned adjacent f "to said crucible,"'an'd a .mold composed of grooved metallic belts in juxtaposition, having means by which said belts are automat-- ically moved through the crucible and water jacket successively,separated while within said crucibleand brought together before leaving it so as to formamatrix within the crucible, forthe purposes specified.

4. A mold formed by two metallic belts;

supported and driven each by independentv 5 same, in combination-with a mold formed by 'two grooved metallic belts, supported and driven each byindependent'pulleys; said cru- =cible havingsuitable guide-openings,through pulleys, said belts being grooved, the grooved surfaces registering to form a-matrix, and the I crucible through which the belts travel automatically, with means for heating the .same, for separating the belts within the crucible and bringing them together before leaving it,

for the purposes s ecified. V V

j 5. The combina ion with a crucible having means forheating the same, of metallic belts having continuous longitudinal mold-grooves in their adjoining faces, suitable belt-guides and means for propelling. said belts through the crucible; said guides being constructed 7 and arranged so as to separate the belts within the crucible, and bring their grooved adjoining facesvtogether to register before leaving,substantially as set forth.

i 6. The combination'with" a crucible water-jacket,positioned adjacent thereto of a matrix, formed by twoendless' beltsconk faces, with means for moving said belts and v heating'said crucible, all for the purposes specified.

7. The combination with the frame A, of v the crucible B, the furnace O, the grooved belts 2 and 3 forming the mold 28, having the i in presence of ingate 24,'the packing-boxes 19-and 20,

through which the belts pass and by which respectively the belts are separatedwhen en- .tering the crucible and brought together before leavingthe same, the Water-jacket 21, surrounding a portion of the mold and adja- I cent to'thle crucible, suitable means forheating. the crucible anddrivingmeans. and tension means foroperating'saidbelts, as shown,

and for the purposes specified.

. The combination with the crucible B,

and neans for. heating the same, of the grooved belts 2 and 3 forming the mold,slots in the crucible by which the belts are separated when entering and brought together be fore'leaving the crucible, the belt-pulleys 4 and 5and 6 and? upon which the belts are carried, driving means for the belts, and the water=jacket'2l, surrounding a portion of the belts and placed adjoining the crucible, as shown, and for the purposes specified. I

9. A mold formed by two metallic belts, supported and driven'each by independent pulleys, one of said belts being grooved, the.

adjoining surfacesof said belts registering to forma matrix, and'a crucible, adapted by means of slots, to receive said belts in their travel and to separate the belts when enter- ;ing and bring them together before leaving the crucible, and means for'heating the cru- 'cible, for the purposes specified. r

10. A crucible with means for heating the which the belts pass and by which they are separated within the crucible and their grooved faces brought together so as to form amatrix before leaving the same, and the cooler surrounding said matrix and adjoining said crucible, for thepurpose of casting'molten metal into continuous strips.

"11. A mold, formed. by two metallic belts,

supported and driven each by independent pulleys, both of said belts being grooved, the

.adjoining surfaces of said belts registering to 1 the purposes specified.

In testimony whereof I affix my signature, two witnesses, this 11th day of CHAS. P. BABoo'o IIO 

